poss功能化氧化石墨烯在PDMS纳米复合材料中的分散稳定性和界面阻尼增强

IF 3.1 Q2 MATERIALS SCIENCE, COMPOSITES

Functional Composites and Structures Pub Date : 2022-09-21 DOI:10.1088/2631-6331/ac93e3

Bog G. Kim, Byungwoo Youn, Yeeun Song, Doojin Lee

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引用次数: 1

摘要

为了提高氧化石墨烯纳米填料在聚二甲基硅氧烷基体中的分散性，制备了多面体低聚硅氧烷功能化氧化石墨烯。通过小振幅振荡剪切试验表征了GO-POSS与聚合物基体的界面亲和力的提高。我们证实，poss功能化的氧化石墨烯诱导了更好的填料分散性和较少的填料在基体中的聚集，从而增强了溶液中的弹性。固化后，POSS界面在界面处形成一层柔软的润滑层，增强了复合材料内部的界面阻尼。

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Enhanced dispersion stability and interfacial damping of POSS-functionalized graphene oxide in PDMS nanocomposites

Polyhedral oligomeric silsesquioxane (POSS) functionalized graphene oxide (GO) is prepared to improve the dispersity of GO nanofillers in a polydimethylsiloxane matrix. Improved interfacial affinity of the GO-POSS with a polymer matrix is characterized by a small amplitude oscillatory shear test. We confirm that the POSS-functionalized GO induces better filler dispersibility and less filler aggregation in the matrix, resulting in enhanced elasticity in the solution. After curing, the POSS interface works as a soft and lubricating layer at the interface, which enhances interfacial damping within the nanocomposites.

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来源期刊

Functional Composites and Structures Materials Science-Materials Science (miscellaneous)

CiteScore

4.80

自引率

10.70%

发文量